Circle saw set



. March 5, 1957 R. L. Rl-:lslNGER y 2,783,663

- CIRCLE sAw SET Filed Dec. 18, 1952 Robert L. Reis/'n ger INVENTOR.

United States Patent CIRCLE SAW SET l.Robert-L.Reisinger,-saginaw,-Mici1. Application December 18, 1952, YSerial No.326,682

1 claim. (cl. 76;-63)

This invention relates to a circle saw set and more particularly to atool adapted to receive circle saws of various diameters and properlyposition the same to effectively produce the desired set therein.

An object of this invention is to provide a circle saw set having meansto rigidly mount the saw in proper horizontal position.

A further object is to provide a feed screw provided with a knob andcollar to prevent end play of the screw.

Another object is to provide a novel anvil and hammer to eifeceivelyproduce rapid and eicient saw setting and to facilitate setting allteeth at the same angle.

A still further object is to provide a positioning block havingmechanism readily adaptable to circle saws having center holes ofvarious diameters.

Another object is to provide a positioning block easily movable toproperly position a saw.

. These together with other objects and advantages which will becomesubsequently apparent reside in the details of construction andoperation as more fully hereinafter described and claimed, referencebeing had to the accompanying drawings forming a part hereof, whereinlike numerals refer to like parts throughout, and in which:

Figure l is a plan view of the invention with the pivoted cam hammerremoved showing a circle saw mounted for setting;

Figure 2 is a vertical section of the same taken substantially alongline 2 2 in Figure 1;

Figure 3 is an end section taken substantially along line 3 3 in Figure2, with the cam hammer removed;

Figure 4 is another vertical section taken substantially along line 4 4in Figure 2; and,

`Figure 5 is a horizontal sectional view showing the cam hammer indetail and taken substantially along line 5 5 in Figure 2.

Referring now to the drawings in detail, it will be seen that referencenumeral designates generally a frame. The frame includes a pair ofspaced opposed side walls 12 secured at opposite end portions thereofand securing brackets 14, in any suitable manner. Each bracket isprovided with apertures 16 at opposite ends thereof by means of whichthe device as a unit may be attached to any suitable support 18. ln thepreferred form shown, bolts 20 are provided for this purpose.

At one end of the device a journal block 22 is disposed between the sidewalls 12 on the upper surface of a corresponding securing bracket 14.The block, walls and bracket may be formed integrally or separately, inwhich latter case the various elements may be rigidly secured togetherin any suitable manner. In either case, it is necessary that the devicebe formed as rigidly as possible. The journal block 22 is provided witha longitudinal bore 24 and an outer face 26, the purpose of which willsubsequently become apparent.

At the opposite end of the device a combined anvil and journal block 2Sis positioned and secured similarly to journal block 22, as will readilybe seen. The combined block has an anvil portion 30 which presents aslopice .f2 ling:triangularsurfacefas clearly l"show-n2infFigures-' 1and 2. -The angle t or 1 degree-tof slope of ythe .l anvilY 'surface'corre-j spends -to lthat'ian'gle conventionally used inllsettingnsawteeth. The combined iblock is -.providjed Iwith I a f lon'gii '.tndinalbore .32 andan outer sui-face134 similar -inipuri pose vand design -tocorresponding portions lof journal rThe combined block 28 has a pair ofupstanding ears 36 to Whichis pivoted a cam 38 vhaving an actuatinghandle 40.r Alpivotipinifeitedslthfoughfftlie-ears and cam for'pivotallhamenptingtthelatter..i;Atportion. 0f the Cam 37 has`a generallytriangulanh mmer .surface 44 which 'is motametovvardnn awayfom the anvil'surface 30 for imparting the proper set to a saw tooth disl posedtherebetween.

Referring now more particularly to Figure 2, reference numeral 46designates generally the feed screw mechanism. The screw has oppositeend portions 48 presenting bearing surfaces received in the longitudinalbores 24 and 32 of blocks 22 and 28 respectively. The end of screw 46adjacent block 22 has a shoulder 50 and a linger knob 52. The shoulderand knob are disposed on the outer side of block 22 and shoulder 50,having a greater diameter than bore 24, abuts the outer surface 26 ofthe block 22. The finger knob 52 is provided so that manual rotation ofthe feed screw may be effected. The other end of screw 46 adjacent block28 extends outwardly therefrom and has positioned thereon a collar 54.The collar is secured to the shaft by means of a set screw 56 or thelike and abuts the outer surface 34 of combined block 28 in like mannerto shoulder 50. The collar 54 and shoulder 50 cooperate to preventlongitudinal shifting of the feed screw 46.

An intermediate portion of the feed screw is threaded, as at 53, andthreadedly engages a positioning block 60. The positioning block hasopposite sides 62 in close engagement with opposing surfaces of the sidewall 12 and being guided thereby. The upper end of the positioning blockis formed as an annular flange 64 which presents a supporting surfacefor receiving a circle saw. Centrally disposed of the positioning blockis an upstanding stud 66 having a threaded upper end 68. A tapered plug70 has a centrally disposed bore receiving the stud and a wing nut 72 isdisposed on the upper end 68 of the stud for urging the plug 72 towardthe positioning block 60. The plug, being tapered, is receivable in sawcenter holes of various diameters.

When it is desired to perform setting operation on a saw the same ispositioned with itsv center hole receiving the stud 66, the plug 70 ispositioned ron the stud and wing nut 72 is tightened. The saw is therebyproperly centered and positioned on the positioning block 60. To thenmove the saw into proper longitudinal position with respect to anvil 30it is merely necessary to manipulate the finger knob as required.

From the foregoing, the construction and operation of the device will bereadily understood and further explanation is believed to beunnecessary. However, since numerous modifications and changes willreadily occur to those skilled in the art, it is not desired to limitthe invention to the exact construction shown and described, andaccordingly, all suitable modifications and equivalents may be restortedto, falling within the scope of the appended claims.

What is claimed as new is as follows:

A saw set comprising a frame having a pair of spaced elongated parallelside walls, a bearing block secured between corresponding ends of saidside walls, a cornbined bearing block and anvil secured between theother ends of the side walls and having a top face including ahorizontal portion above said side walls and an inclined portioninclinng downwardly from said horizontal portion, a feed screw extendinglongitudinally between said side walls with ends journaled through saidbearing blocks,

portion to set a tooth of a saw, and a pair of straight horizontalbracket members extending from opposite sides of said bearing blocks forattachment of the saw set to a base.

References Cited in the tile of this patent UNITED STATES PATENTS k241,633 Dunn May 17, 1881 4 Covel .Tune 13, 1882 Simouds et ai. Oct. 20,1885 McCarthy n, Feb. 16, 1892 Mahar Sept. 26, 1899 Hakes Nov. 15, 1904Ward `an. 25, 1910 Hilsinger May 5, 1914 Detlie June 22, 1915 Byrns eta1. Apr. 12, 1921 Smith Mar. 13, 1923 Thomas May 1, 1923 Thrasher July10, 1934 FOREIGN PATENTS France May 3, 1922

